[INFO] fetching crate open-metrics-client-derive-text-encode 0.1.1...
[INFO] testing open-metrics-client-derive-text-encode-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate open-metrics-client-derive-text-encode 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate open-metrics-client-derive-text-encode 0.1.1
[INFO] finished tweaking crates.io crate open-metrics-client-derive-text-encode 0.1.1
[INFO] tweaked toml for crates.io crate open-metrics-client-derive-text-encode 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate open-metrics-client-derive-text-encode 0.1.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7031901542bf02f5c6d56b8a99053c2975a9119a5d52704ae2e9d4bd399108e4
[INFO] running `Command { std: "docker" "start" "-a" "7031901542bf02f5c6d56b8a99053c2975a9119a5d52704ae2e9d4bd399108e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7031901542bf02f5c6d56b8a99053c2975a9119a5d52704ae2e9d4bd399108e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7031901542bf02f5c6d56b8a99053c2975a9119a5d52704ae2e9d4bd399108e4", kill_on_drop: false }`
[INFO] [stdout] 7031901542bf02f5c6d56b8a99053c2975a9119a5d52704ae2e9d4bd399108e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b1227fbc3db177003fc0512496c6aceeee954aca2a5ead709275dba3f11ed75
[INFO] running `Command { std: "docker" "start" "-a" "9b1227fbc3db177003fc0512496c6aceeee954aca2a5ead709275dba3f11ed75", kill_on_drop: false }`
[INFO] [stderr]    Compiling open-metrics-client-derive-text-encode v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "9b1227fbc3db177003fc0512496c6aceeee954aca2a5ead709275dba3f11ed75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1227fbc3db177003fc0512496c6aceeee954aca2a5ead709275dba3f11ed75", kill_on_drop: false }`
[INFO] [stdout] 9b1227fbc3db177003fc0512496c6aceeee954aca2a5ead709275dba3f11ed75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5496f1cb0de0a8606b9ad3f9ed4421e89007355ddec5b1ae86bfbbab0c6b8a13
[INFO] running `Command { std: "docker" "start" "-a" "5496f1cb0de0a8606b9ad3f9ed4421e89007355ddec5b1ae86bfbbab0c6b8a13", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling open-metrics-client-derive-text-encode v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `open_metrics_client`
[INFO] [stdout]  --> tests/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use open_metrics_client::encoding::text::{encode, Encode};
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `open_metrics_client`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `open_metrics_client`, use `cargo add open_metrics_client` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `open_metrics_client`
[INFO] [stdout]  --> tests/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use open_metrics_client::metrics::counter::Counter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `open_metrics_client`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `open_metrics_client`, use `cargo add open_metrics_client` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `open_metrics_client`
[INFO] [stdout]  --> tests/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use open_metrics_client::metrics::family::Family;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `open_metrics_client`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `open_metrics_client`, use `cargo add open_metrics_client` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `open_metrics_client`
[INFO] [stdout]  --> tests/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use open_metrics_client::registry::Registry;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `open_metrics_client`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `open_metrics_client`, use `cargo add open_metrics_client` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/lib.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/lib.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/lib.rs:55:6
[INFO] [stdout]    |
[INFO] [stdout] 55 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `encode` found for struct `remap_keyword_identifiers::Labels` in the current scope
[INFO] [stdout]   --> tests/lib.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     struct Labels {
[INFO] [stdout]    |     ------------- method `encode` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 61 |     labels.encode(&mut buffer);
[INFO] [stdout]    |            ^^^^^^ method not found in `remap_keyword_identifiers::Labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `open-metrics-client-derive-text-encode` (test "lib") due to 5 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5496f1cb0de0a8606b9ad3f9ed4421e89007355ddec5b1ae86bfbbab0c6b8a13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5496f1cb0de0a8606b9ad3f9ed4421e89007355ddec5b1ae86bfbbab0c6b8a13", kill_on_drop: false }`
[INFO] [stdout] 5496f1cb0de0a8606b9ad3f9ed4421e89007355ddec5b1ae86bfbbab0c6b8a13